Refrigerator



Patented Mar. 19, 18.89.

(No Model.)

N. DAVIS.

RBFRIGERATOR.

UNITED STATES PATENT OEEICE.

NATHANIEL DAVIS, OF AMONTPELIER, VERMONT, ASSIGNOR OF ONE-HALF TO GEORGEI.. DAVIS, OE NORTH ANDOVER, MASSACHUSETTS.

REFRIGERATOR.

SPECIFICATION forming part of Letters Patent No. 399,976, dated March19, 1889.

Application filed August 13, 1888. Serial No. 282,565. (No model.)

T0 all whom t may concern..

Be it known that I, N ATHANIEL DAVIS, of Montpelier, county oflVashington, State of Vermont, have invented an Improvement inRefrigerators, of which the following description, in connection Withthe accompanying drawings, is a specification, like letters and iigureson the drawings representing like parts.

This invention has for its object to provide a refrigerator of novelconstruction especially adapted for use in Warm climates, Where ice isexpensive, my improved refrigerator effecting a very considerable savingin the consumption of ice.

The particular features of my invention will be pointed out in theclaims at the end of this specification.

Figure l is a side elevation of a refrigerator embodying my invention,the doors to the food chambers or compartments being open Fig. 2, ahorizontal section of the refrigerator shown in Fig. l on line :1: a',-Fig. 3, a vertical section of the refrigerator on line x Fig. 2; Fig. 4,a vertical section of the refrigerator on line y y, Eig. 3, and Fig. 5 adetail to be referred to.

The body of the refrigerator, composed of an outer wall or casing, a, aninner Wall, a', of wood or other material, is supported upon suitablelegs, (1X, the top and front side of the refrigerator being shown asprovided with doors. j, f i

The outer and inner Talls are separated by an air space or chamber whichis subdivided, in accordance With my invention, into a number ofchambers, a2, by partitions as, preferably of air and water proofno1i-heatco11duct ing material, such as paper -board coated withparaffine or other oleaginous material. The partitions 0.3 aremaintained at the proper distance apart by cleats or strips, as d5, ofwood or other suitable material, the said cleats or strips a5 being ofsuch thickness and so arranged as to leave the chambers a2 ofsubstantially the same Width, as shown in Fig. 2. The partitions as,being of a non-l1eat-conducting material, effectually prevent theoutside heat from penetrating into the interior of the refrigerator.

The refrigerator at its interior is provided,

as shown, With a horizontal dividing-Wall, b, forming below it afood-receiving compartment or chamber, b', and the space above the saidwall is divided by a vertical Wall, b2, into chambers b3 b4, the chamberb4 being provided, as shown, with a false orauxiliary bottom, b5, uponwhich 'is placed the ice, the said auxiliary bottom being supportedabove the wall b, so as to leave a cold-air passage, 6, under the saidauxiliary bottom. The compartment b3 communicates with the compartment bby a passage or port, c, (see Figs. 2 and 3,) formed, as shown, bycutting a slot through the horizont-al partition b, the said port orpassage being controlled from Within the chamber b3 by a valve, c',hinged, as at c2, to the said Wall I), the said valve being closed whenthe door c3 is open by a spring, c4. The port c is also controlled fromwithin the chamber b by a second valve, c5, made as a slide-valve. Thecompartment Z1" communicates with the compartment b by passage or portbi, (see Fig. 3,) controlled by valve 3, pivoted at 4L in portions ofthe Wall I), the said valve 3 being connected by a rod, c6, to the valvec5, before described, and in practice supported in suitable Ways orcleats, t t, the said rod being provided, as shown, With a cam orprojection, c7, which 'is acted upon by a cam or projection, o8, on thedoor c of the compartment b', to open the said ports when the said dooris closed, thus enabling the cold air to at such time descend into thecompartment b. The compartment b3 communicates with the icereceivingcompartment b4 by ports or passages 2, bi, and 7, the ports bi and 7being formed, as shown, by slots at the top and bot tom of the verticalpartition-Wall h2. The said ports D7 and '7 are controlled by valves bsand b", sliding in suitable Ways next one side the partition b2, thesaid valves being connected by rods l0 and l2 to a pivoted lever, 13,(see Fig. 4,) the rod 10 having a cam projection, 15. The valves bs andb9 are moved to uncover the ports by a cam or projection, 16, on thedoor c3, acting on the cam l5 on the rod 10, the said valves bs b9 beingopen when the door is closed, and closed by a spring, 17, When the dooris open.

The doors of the refrigerator are provided with double Walls, and thespace between the same is divided into chambers by partitions the sameas the main walls of the body of the refrigerator.

In practice the ice is placed in the compartment b4, it resting on theauxiliary bottom b5. When all the doors are closed, communication isestablished between all the compart.

i stance, it may be hinged to the door and dropped or turned down, so asnot to engage the cam c7.

With the cam o8 rendered inoperative, the rod c6 is moved, as hereinshown, by a spring, 20, connected to the rod c6 and the wall b, tooperate the valves and close the ports b and c, thereby cutting offcommunication between the upper and lower compartments, the valves beingat such time in the position shown in Fig. 3.

The circulation of air may be entirely cut off and the cold air confinedin the ice-compartment b4, which may be eiected, as herein shown, byopening both doors. This may be eiected when it is desired to cleansethe compartments.

I have herein shown the valves controlling the ports or passages asautomatically operated by the doors; but, if desired, they may beindividually operated by hand. The cover of the ice-chamber will be inWhole or part removable V for reception of ice.

I claiml. In a refrigerator, the body and a division- Wall, b, to Jformice and food compartments Within said body, the auxiliary bottom b insaid ice-compartment, andv passages or ports c bs to establishcommunication between said compartments, combined with valves c5v and 3,to control said ports or passages, respectively, said valves beingconnected by the spring-controlled sliding rod c6, having the projectionc7 thereon, to be acted on by the cam c3 of the food-compartment door toopen said passages when the door is closed, substantially as and for thepurpose specified. 2. In a refrigerator, the body division-Walls b b2,forming chambers b b3 b4, and having formed therein ports or passages toestablish communication between said chambers b3 b4 for the cold air,combined with valves 68 b9, to control the ports or passages 7 and 197,said valves being connected by rods 10 l2 and pivoted lever 13, and theprojection l5 on said rod 10, and the cam 16 on the door of the chamberb3, to co-operate tl1erewith,Where by the said valves are opened whenthe door is shut, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

NATHANIEL DAVIS.

Witnesses:

G. W. GREGORY, B. DEWAR.

